The sub-atomic particle known as the "neutrino" was originally hypothesized
A) because it was thought that radiant energy is actually a form of energy.
B) in order to preserve conservation of electric charge in a certain type of nuclear process.
C) in order to preserve Newton's laws in a certain type of nuclear process.
D) because it was thought that thermal energy (or heat) is actually a form of energy.
E) in order to preserve the law of conservation of energy in a certain type of nuclear process.
E
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1.0 kg is at (-2.0, 2.0); 2.0 kg is at (2.0, -4.0); and 3.0 kg is at (2.0, 0.0)
(a) What is the x coordinate of the center of mass? (b) What is the y coordinate of the center of mass?
The closest star to our solar system is Alpha Centauri, which is 4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star
(a) How much time would elapse on a clock on board the spaceship? (b) How much time would elapse on a clock on the Earth?
An object is placed in front of a convex mirror at a distance larger than twice the magnitude of the focal length of the mirror. The image will appear
A) in front of the mirror. B) inverted and reduced. C) inverted and enlarged. D) upright and reduced. E) upright and enlarged.
A segment of wire carries a current of 25 A along the x axis from x = -2.0 m to x = 0 and then along the z axis from z = 0 to z = 3.0m. In this region of space, the magnetic field is equal to 40 mT in the positive z direction. What is the magnitude of the force on this segment of wire?
a. 1.0 N b. 5.0 N c. 2.0 N d. 3.6 N e. 3.0 N